Use DEVICE_ATTR_RO() helper instead of plain DEVICE_ATTR(),
which makes the code a bit shorter and easier to read.
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
---
drivers/perf/qcom_l3_pmu.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/perf/qcom_l3_pmu.c b/drivers/perf/qcom_l3_pmu.c
index bba078077c93..081273543c6b 100644
--- a/drivers/perf/qcom_l3_pmu.c
+++ b/drivers/perf/qcom_l3_pmu.c
@@ -670,15 +670,15 @@ static const struct attribute_group qcom_l3_cache_pmu_events_group = {
/* cpumask */
-static ssize_t qcom_l3_cache_pmu_cpumask_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t cpumask_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct l3cache_pmu *l3pmu = to_l3cache_pmu(dev_get_drvdata(dev));
return cpumap_print_to_pagebuf(true, buf, &l3pmu->cpumask);
}
-static DEVICE_ATTR(cpumask, 0444, qcom_l3_cache_pmu_cpumask_show, NULL);
+static DEVICE_ATTR_RO(cpumask);
static struct attribute *qcom_l3_cache_pmu_cpumask_attrs[] = {
&dev_attr_cpumask.attr,
--
2.17.1
